CN113086561A

CN113086561A - Improved feeding device for transversely conveying long-strip section

Info

Publication number: CN113086561A
Application number: CN202110456506.3A
Authority: CN
Inventors: 黄建滨
Original assignee: Guangdong Chittak Intelligent Equipment Co ltd
Current assignee: Guangdong Chittak Intelligent Equipment Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-07-09

Abstract

An improved feeding device for transversely conveying long-strip profiles comprises a machine frame, wherein at least two feeding belts horizontally extending in the front-back direction are arranged on the machine frame at intervals, and the feeding belts can rotate so as to transversely advance the long-strip profiles on a supporting surface at the top end of the feeding belts; the device is characterized in that at least one auxiliary flat slide rail is further arranged on the rack, the auxiliary flat slide rail extends horizontally and is arranged on the side edge of the feeding belt, and the top end supporting surface of the auxiliary flat slide rail and the top end supporting surface of the feeding belt are basically level for supporting the sectional material together.

Description

Improved feeding device for transversely conveying long-strip section

Technical Field

The invention relates to the technical field of section bar processing, in particular to a feeding device which is used for transversely conveying a long-strip section bar.

Background

The length and size of a common long-strip-shaped section are generally set to be 4-12 meters due to the limitation of production and transportation equipment and the consideration of cost, and when the long section is processed, the traditional manual feeding mode cannot adapt to the step of modern processing. Therefore, a feeding device special for transversely conveying long-strip profiles is developed, but the problem of profile stacking is easily caused by head and tail twisting of the long-strip profiles in the conveying process, and the stacked profiles are not favorable for one-by-one processing operation of the profiles. In order to solve the stacking problem when the sectional materials are transversely conveyed, the Chinese patent with patent number ZL201510429585.3, which is earlier applied by the applicant, discloses a long tubular material sequencing feeder and a sequencing feeding method, wherein the feeder comprises a rack, a feeding conveyor belt arranged on the rack, a feeding device arranged in front of the feeding conveyor belt and a bin device arranged behind the feeding conveyor belt, a row of feeding conveyor belts are respectively arranged at least at the left side and the right side of the rack, and each row of feeding conveyor belts comprises a front conveyor belt capable of twisting operation and a rear conveyor belt capable of moving forwards in a single direction; particularly, the front conveyor belt provides twisting power for the pipes on the front conveyor belt, so that the stacked pipes can be continuously self-adjusted, straightened and untwisted and can be gradually and independently discharged.

Since the twisting motion of the front conveyor in the above patent is a fixed frequency motion, it may not be possible to separate some closely stacked profiles, and thus the stacked profiles may be forcibly pressed by the machine while being continuously conveyed forward, which may cause deformation of the profiles or damage to the machine. The Chinese invention patent with the patent number ZL201910100127.3 discloses a feeding machine and a pipe cutting production line adopting the same, the feeding machine is improved on the basis of the patent number ZL201510429585.3, a material poking switch is arranged between a limiting device and a feeding mechanism and is positioned on the upper side of a reciprocating conveying device, and the reciprocating device is triggered to do reciprocating motion through the material poking switch, so that the problem that the front conveying belt in the prior art is single in supporting action is solved, and the problems that pipes are twisted and are easy to deform due to extrusion are solved.

However, since the long-strip profile has a certain elastic deformation capability, particularly when the feeding belts for supporting the profile have a long distance, the diameter of the profile is small, or the material of the profile is soft, the profile can be locally dropped or tilted due to the deformation of the profile, and the profile deformation condition may cause the wrong judgment of the material poking switch in the forward conveying process of the profile, so that the profile is deformed or the machine is damaged.

Disclosure of Invention

The problem of deformation of the elongated profiles themselves in the feeding devices conveying the elongated profiles is associated with the problem of stacking of the profiles, for example the stacked profiles, after deformation, make the entanglement between the profiles more severe, making the profiles more difficult to separate; the stacked section bars can avoid the material poking switch because the section bars are locally dropped, which can cause the problem that the stacked section bars are extruded and deformed when being conveyed forwards; the single section bar may be partially tilted to mistakenly touch the material poking switch, which causes the continuous and repeated reciprocating motion of the conveyor belt to cause resource waste. Aiming at the technical problem, the invention provides an improved feeding device for transversely conveying long-strip profiles, which comprises a rack, wherein at least two feeding belts horizontally extending in the front-back direction are arranged on the rack at intervals, and the feeding belts can rotate so as to drive the long-strip profiles placed on a supporting surface at the top end of the feeding belts to transversely advance; the device is characterized in that at least one auxiliary flat slide rail is further arranged on the rack, the auxiliary flat slide rail extends horizontally and is arranged on the side edge of the feeding belt, and the top end supporting surface of the auxiliary flat slide rail and the top end supporting surface of the feeding belt are basically level for supporting the sectional material together.

Wherein, the frame is a basic supporting member of the feeding device, the frame has a front-back direction and a left-right direction extending structure to provide stable support for the later-mentioned feeding belt, the auxiliary flat slide rail, the transmission member and the long section bar resting on the feeding belt, the front-back direction of the frame is basically consistent with the front-back direction of the later-mentioned feeding belt and the transverse conveying direction of the section bar, and the left-right direction of the frame is basically consistent with the axial extending direction of the long section bar resting on the feeding device.

The feeding belt is a transmission component for driving the sectional material to move transversely, and can rotate along the front and back directions in order to drive the sectional material to move transversely; many the pay-off area should still rotate in step in order to guarantee that rectangular section bar can whole steady lateral translation.

The auxiliary flat slide rail is an auxiliary component for supporting the long-strip section bar, and can effectively provide auxiliary support for the long-strip section bar by arranging one or more auxiliary flat slide rails, so that good support can be provided for the section bar in the moving process of the section bar, and the transverse movement of the long-strip section bar in a straight posture is facilitated.

In order to protect the surface of the profile, the further technical scheme may be that the auxiliary flat rail includes a metal support body and a non-metal surface layer laid on the metal support body, and a top end surface of the non-metal surface layer forms a top end support surface of the auxiliary flat rail. This helps to reduce scratching of the profile and protects the surface of the profile, while also increasing the contact area with the profile to provide a certain friction force to the elongated profile.

The top end supporting surface of the auxiliary flat sliding rail is basically level with the top end supporting surface of the feeding belt, and the function of the auxiliary flat sliding rail is to enable all supporting points of the supporting strip-shaped section bars to fall on the same straight line so that the section bars can be kept to be arranged straight; there are various situations in which the support surfaces of the two members are substantially flat, for example when the support surfaces of both members are flat, the two support surfaces are arranged to substantially coincide; sometimes, in order to improve the conveying effect of the feeding belt, the supporting surface of the feeding belt is arranged to be regularly wavy, so that the top supporting surface of the auxiliary flat slide rail is arranged to be slightly lower than the highest point of the wavy surface of the feeding belt so as to support the profile to keep a straight posture.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: firstly, the auxiliary flat slide rail is arranged on the side edge of the feeding belt, so that good auxiliary support can be provided for a long-strip profile during transverse movement, and the number of the feeding belts can be reduced on the premise of ensuring the conveying capacity, so that the manufacturing cost and the later maintenance cost of a machine are greatly saved; secondly, the fixed auxiliary flat slide rail can provide certain friction resistance for the long-strip section while providing support for the section, the friction acting force is beneficial to separating the section from the section stacked on the auxiliary flat slide rail when the section moves, and meanwhile, the friction force provided by the auxiliary flat slide rail for the section can enable the section to roll to a certain degree, so that the twisted and stacked sections can be separated; thirdly, the long-strip section can be placed on the feeding belt in a straight posture under the support of the auxiliary flat slide rail, and the long-strip section can be better overlapped on the top end support surface of the feeding belt, so that the contact area between the section and the feeding belt is increased, and the whole section can be enabled to move forwards and transversely along with the feeding belt.

Sometimes, the stacked section is difficult to unwind by rolling the section, the stacked section can be further unwound by utilizing the characteristic that the friction force between the stacked sections is smaller than the friction force between the section and the feeding belt, and the technical scheme is that the feeding device further comprises a controller, a driver and a sensor, wherein the driver is connected with the controller through signals, the driver is used for driving the feeding belt to rotate positively and reversely under the control of the controller, the sensor is arranged above the feeding belt, the sensor is used for finding the section passing through the lower part of the feeding belt in the stacked state and providing a finding signal corresponding to the section to the controller, and the controller is arranged for driving the feeding belt to rotate reversely by a threshold step immediately after the feeding belt carries the section to move transversely and receives the finding signal.

The sensor is arranged in a space above the feeding belt, and when viewed from top to bottom, the sensor can be staggered with the feeding belt or the auxiliary flat slide rail in the left-right direction or arranged right above the feeding belt or the auxiliary flat slide rail; in order for the sensor to be able to detect profiles passing under it in a stacked state, the vertical distance between the sensor and the top supporting surface of the feed belt is generally set to be slightly larger than the diameter of a single profile and smaller than twice the diameter of a profile, so that stacked profiles can be detected perceptively when passing under the sensor. The feeding belt rotates reversely by a threshold step, which means that the feeding belt rotates reversely and then rotates forward and can unlock a minimum moving distance value (or an angle value and a time value) of a stacking state of the long-strip section bars, the long-strip section bars are driven by the feeding belt to rotate reversely by the distance value and then return to the forward rotation action, and because the friction force between the section bars is smaller than the friction force between the section bars and the feeding belt, the section bars stacked above can generate an inertia acting force keeping the original moving direction when moving and changing directions, and the section bars stacked above can slide down on the feeding belt by the inertia acting force so as to unlock the stacking state of the long-strip section bars.

If the stacked profile and the sensor are found by making a rigid contact, which may cause the profile to deform and may be very detrimental to the service life of the sensor, in order to protect the profile and the sensor, a further technical solution may be that the sensor is a travel switch comprising a touch arm for finding in a touching manner the profile passing thereunder in a stacked state and transmitting a collision signal to the switch, which signal is connected to the controller. In one embodiment, the touch arm is arranged on the mounting plate above the feeding belt in a manner of swinging back and forth through a rotating shaft, the switch is arranged on one side of the touch arm, the touch arm extends downwards to a position which is more than one time of the diameter of the section bar and less than two times of the diameter of the section bar, the section bar can touch and push the touch arm to swing when the stacked section bars pass through the sensor, and the touch arm triggers the switch when swinging so as to transmit a collision signal to the switch. The switch can be a contact switch or a non-contact inductive switch, and the use of the non-contact inductive switch is more beneficial to the service life of the sensor because the non-contact inductive switch does not need to be in contact with the touch arm.

In order to ensure that the plurality of feeding belts can synchronously rotate, the feeding belts are chain belts and are driven to move by matching a pair of driving sprockets and driven sprockets, the feeding belt further comprises a main driving shaft which is rotatably arranged on the rack, the driving sprockets of all the feeding belts are in transmission connection with the main driving shaft, and the driver is in transmission connection with the main driving shaft and drives all the feeding belts to synchronously rotate by the main driving shaft; the feeding belt comprises a metal meshing part meshed with the chain wheel and a nonmetal supporting part connected to the side edge or the upper edge of the metal meshing part, the upper surface of the nonmetal supporting part forms a top supporting surface for supporting the section bar, and the upper surface of the nonmetal supporting part is higher than the upper surface of the metal meshing part. The feeding belt is a member for supporting profiles or a transmission member which can be driven by the driving sprocket to rotate, the metal meshing part is of a roller chain structure, the metal meshing part is matched with the driving sprocket and the driven sprocket to have good rotation synchronism, the non-metal supporting parts are mainly used for supporting the profiles, and a plurality of non-metal supporting parts form a top end supporting surface with regular height fluctuation; the feeding belts arranged in this way can realize synchronous rotation of the plurality of feeding belts and can drive the long-strip section to move forwards transversely under the condition of not scratching the section.

In order to adapt to the profiles with different diameters, the device further comprises a limiting frame, the limiting frame is arranged above the feeding belt and can adjust the height of the limiting frame relative to the feeding belt, and the sensor is arranged on the limiting frame so as to adjust the position height of the sensor relative to the feeding belt.

Of course, in order to better solve the problem of stacking the profiles, on the basis of using the auxiliary flat slide rail, the feeding belt of a chain belt type, the touch arm capable of finding out the problem of stacking the profiles better and the limiting frame capable of adapting to different profiles can be combined to achieve a better conveying effect in the same embodiment.

In order to facilitate the sectional materials to be conveyed one by one when conveyed from the feeding device to the next machining process, the sectional materials are sequentially arranged one by one after passing through the sensor, the further technical scheme can also be that the feeding device further comprises a first inclined slide rail arranged on the rack and a limiting rod arranged above the first inclined slide rail, a downward inclined containing cavity is formed by the combination of the first inclined slide rail and the limiting rod, the front end of the containing cavity is connected to the downstream of the feeding belt or the auxiliary flat slide rail so as to receive the sectional materials output from the feeding belt, and the limiting rod is detachably connected to the limiting frame so as to adjust the height in the containing cavity. The receiving cavity is a space between the first inclined slide rail and the limiting rod, the feeding belt conveys the sectional materials to the receiving cavity, the sectional materials slide to the bottom of the receiving cavity along the first inclined slide rail under the action of the dead weight of the sectional materials, and the sectional materials can be well and orderly arranged in the receiving cavity one by adjusting the height in the receiving cavity to be slightly larger than the diameter of the conveyed sectional materials.

Thanks to the above characteristics and advantages, the present invention can be applied to an improved feeding device with a device for transverse transfer of elongated profiles.

Drawings

FIG. 1 is a schematic axial-side structural view of a feeding device using the feeding device;

FIG. 2 is a left-side view structural schematic diagram of a feeding device applying the feeding device;

FIG. 3 is a schematic structural diagram of the feeding device in the axial direction;

FIG. 4 is an exploded view of the feed belt;

FIG. 5 is a schematic structural diagram of the auxiliary flat slide rail;

FIG. 6 is a schematic structural view of the stop frame;

fig. 7 is a schematic diagram of an explosive structure of the rotary positioning device.

Detailed Description

The structure of an improved feeding device 2 for transverse transfer of elongated profiles to which the solution of the invention is applied will be further described with reference to the accompanying drawings.

As shown in fig. 1 and 2, this is a set of feeding equipment for conveying long-strip-shaped materials to a cutting machine, since the cutting machine is set as a single-pipe input cutting processing mode, which requires the set of feeding equipment to output the shaped materials one by one when finally outputting the shaped materials, the set of feeding equipment includes a storage device 1, a feeding device 2 and a feeding device 3 which are sequentially arranged along the front-back direction, wherein the storage device 1 is used for storing long-strip-shaped materials and can batch-feed the long-strip-shaped materials to the feeding device 2, and the feeding device 3 includes a material pushing plate 31 and a material guiding groove 32, and a single long-strip-shaped material can be conveyed to the cutting machine along the axial direction of the shaped materials through the material. The rear end of the feeding device 2 is connected with the storage device 1, the long-strip-shaped section bars can be received by the storage device 1 and horizontally placed along the left and right directions of the feeding device 2, the feeding device 2 is mainly used for transversely conveying the long-strip-shaped section bars from the rear end to the front end, the long-strip-shaped section bars are arranged one by one in sequence in the transverse conveying process of the section bars, and the front end of the feeding device 2 is connected with the feeding device 3 and can be used for placing the sequentially-arranged long-strip-shaped section bars into the material guide groove 32 of the feeding device 3 one by one.

In order to enable the feeding device 2 to realize a transverse feeding function, the feeding device 2 comprises a frame 21 and at least two feeding belts 4 horizontally extending in the front-back direction arranged on the frame 21 at intervals, the frame 21 is a basic supporting member of the feeding device 2, and the feeding belts 4 and the profiles resting on the feeding belts 4 are stably supported by the frame 21. Since the length of the long-strip profile is mostly 4 m, 6 m, 8 m or 12 m, the left and right extension lengths of the machining 21 are matched with the long-strip profile. As shown in fig. 1, five feeding belts 4 are arranged on the frame 21 at intervals in the left-right direction, the extending direction of each feeding belt 4 is substantially perpendicular to the axial extending direction of the long-strip profile, the feeding device 2 further comprises a driver 5, the driver 5 is used for driving the feeding belts 4 to rotate in the front-back direction, and the feeding belts 4 rotate and can carry the long-strip profile on the supporting surface of the top end to move forwards transversely.

In order to enable the plurality of feeding belts 4 to rotate synchronously, a further technical solution may be that the feeding belts 4 are chain belts and are driven to move by a pair of driving sprockets 42 and driven sprockets 43, and further include a main driving shaft 44 rotatably disposed on the frame 21, the driving sprockets 42 of all the feeding belts 4 are drivingly connected to the main driving shaft 44, and the driver 5 is drivingly connected to the main driving shaft 44 and drives all the feeding belts 4 to rotate synchronously by the main driving shaft 44. The specific embodiment of the driving connection of the driver 5 and the main driving shaft 44 at least comprises the following three types, the first type is that the main driving shaft 44 is directly connected with the output shaft of the driver 5; secondly, the output shaft of the driver 5 and the main driving shaft 44 are provided with matched gears which are in transmission connection through the gears; thirdly, a belt wheel is arranged on the output shaft of the driver 5 and the main driving shaft 44, and the driver 5 and the main driving shaft 44 form a transmission link through a chain or a belt. As shown in fig. 1 and 2, the middle lower space of the frame 21 can be used for placing the driver 5 and driving the main driving shaft 44 to rotate through a chain or a belt, so that the transmission structure arranged in this way not only saves the space for installing the driving machine 5 but also enables the main driving shaft 44 to rotate smoothly.

The normal feeding belt 4 uses a nylon cloth belt or an iron net as a member for supporting the strip section, but the surface of the nylon cloth belt is smooth, so that the nylon cloth belt is easy to slip when the strip section is conveyed, and the iron net may scratch the surface of the strip section. In order to better drive the transverse movement of the long section bar, the feeding belt 4 comprises a metal meshing part 45 meshed with the chain wheel and a non-metal supporting part 46 connected to the side edge or the upper edge of the metal meshing part 45, the upper surface of the non-metal supporting part 46 forms a top supporting surface for supporting the section bar, and the upper surface of the non-metal supporting part 46 is higher than the upper surface of the metal meshing part 45. The metal engaging part 45 is a roller chain structure, the roller chain is matched with the driving sprocket 42 and the driven sprocket 43 to have good rotation synchronism, the non-metal supporting part 46 is mainly used for supporting the section bar and driving the section bar to move forwards in the transverse direction, as shown in fig. 3 and 4, the non-metal supporting part 46 is a plastic roller installed on a roller rotating shaft extending from one side of the metal engaging part 45, the plastic rollers are arranged along the metal engaging part 45 in an equally spaced sequence, and the plastic roller is used for supporting the upper surface of the long section bar to be higher than the upper surface of the metal engaging part 45. In this way, both the synchronous rotation of the plurality of feeding belts 4 and the forward movement of the elongated profiles with the minimum scratching of the profiles can be realized.

The strip-shaped material fed from the magazine 1 in batches is often stacked, and in order to increase the automation of the feeding and to reduce the manual operations, the stacked profiles can be unwound by using the feature that the friction between the stacked profiles is smaller than the friction between the profiles and the feeding belt 4, as shown in fig. 1 to 6, a further technical solution may be that, the feeding device 2 further includes a controller (not shown) and a driver 5 and a sensor 6 in signal connection with the controller, the driver 5 is used for driving the feed belt 4 to rotate positively and reversely under the control of the controller, the sensor 6 is arranged above the feed belt 4, wherein the vertical distance between the top supporting surfaces of the feeding belt 4 of the sensor 6 is generally set to be slightly larger than the diameter of a single section and smaller than the diameter of two times of the section; the sensor 6 is arranged to detect a profile passing thereunder in a stacked state and to provide a detection signal corresponding thereto to the controller, which is arranged to drive the feed belt 4 to rotate in reverse a threshold step immediately after the feed belt 4 has advanced transversely with the profile and received the detection signal. In a specific implementation, the rotation of the feeding belt 4 in the reverse direction by a threshold step means that the feeding belt 4 rotates in the reverse direction and then rotates in the forward direction, and the stacking state of the long-strip profiles can be released, and the long-strip profiles are driven by the feeding belt 4 to rotate in the reverse direction by the distance and then return to rotate in the forward direction, so that the long-strip profiles are rotated in the forward direction as a whole.

Since the number of feeding belts 4 and sensors 6 is limited, especially a large distance is generally left between two adjacent feeding belts 4, the long-strip profile (especially the tube with a small diameter) resting on the feeding belts 4 is likely to have a wave height uneven state due to the deformation problem, and the state not only causes the profile to collide with the rack 21 or the connecting belt during the transverse movement, but also causes the sensors 6 to fail to find the stacked profile due to the dropping of the profile or causes the sensors 6 to mistakenly find the stacked profile due to the local protrusion of a single profile. In order to solve the problems, a further technical solution may also be that at least one auxiliary flat slide rail 7 is further disposed on the frame 21, and the auxiliary flat slide rail 7 extends horizontally and is disposed at a side edge of the feeding belt 4; as shown in fig. 1 to 6, the auxiliary flat slide rail 7 is fixedly disposed on the frame 21, horizontally extends in the forward direction, and is substantially parallel to the feeding belt 4, and the top end supporting surface of the auxiliary flat slide rail 7 and the top end supporting surface of the feeding belt 4 are substantially flush for supporting the profile together. Like this, through setting up one or more supplementary flat slide 7 can provide auxiliary support for rectangular section bar effectively, also provides good support for the section bar in the in-process that the section bar removed, can let rectangular section bar with straight posture lateral shifting. On the other hand, the auxiliary flat slide rail 7 is arranged to support the long-strip section bar and provide friction force for the section bar, so that the section bar is separated from the section bar stacked on the auxiliary flat slide rail when the section bar is turned, and the friction force provided by the auxiliary flat slide rail 7 for the section bar can also enable the section bar to roll to a certain degree so as to be more favorable for separating the section bars stacked together in a twisting manner.

In order to protect the surface of the profile, a further technical solution may be that the auxiliary flat sliding rail 7 includes a metal supporting body 71 and a non-metal surface layer 72 laid on the metal supporting body, and a top end surface of the non-metal surface layer 72 forms a top end supporting surface of the auxiliary flat sliding rail 7. The nonmetal surface layer is generally made of plastic or other materials with hardness smaller than that of metal, so that scratching of the top end of the nonmetal surface layer facing the section bar is reduced, and the surface of the section bar is protected.

In order to protect the profiles and prolong the service life of the sensor 6, a further technical solution may be that the sensor 6 is a travel switch 62, and the travel switch 62 includes a touch arm 61 and a switch 62, the touch arm 61 is used for finding the profiles passing through the stacked state below the touch arm in a touch manner and transmitting a collision signal to the switch 62, and the switch 62 is in signal connection with the controller. As shown in fig. 1 to 6, the touch arm 61 is provided on the fixing plate above the feeding belt 4 through a rotating shaft so as to be capable of swinging back and forth, the switch 62 is provided on one side of the touch arm 61, the touch arm 61 extends downward to a position more than one times of the diameter of the profile and less than two times of the diameter of the profile from the top supporting surface of the feeding belt 4, the profile stacked on the top can touch and push the touch arm 61 to swing when the stacked profile passes under the sensor 6, and the touch arm 61 triggers the switch 62 to transmit a collision signal to the switch 62 when swinging. The switch 62 is a non-contact inductive switch, because the use of a non-contact inductive switch without touching the touch arm 61 is more beneficial to the service life of the sensor 6.

In order to adapt to profiles with different diameters, the device further comprises a limiting frame 8, the limiting frame 8 is arranged above the feeding belt 4 and can adjust the height of the feeding belt 4, and the sensor 6 is arranged on the limiting frame 8 so as to adjust the position height of the sensor 6 relative to the feeding belt 4. As shown in fig. 2 and 6, the limiting frame 8 includes a frame body 81 disposed horizontally at left and right sides and a lifting rod 82 disposed at two sides of the frame body 81, the sensor 6 is fixedly mounted on the frame body 81, and the frame body 81 drives the sensor 6 to move up and down under the driving of the lifting rod 82.

In order to enable the sectional materials to be sequentially arranged one by one after passing through the sensor 6, a further technical solution may further include a first inclined slide rail 83 disposed on the frame 21 and a limiting rod 84 disposed above the first inclined slide rail 83, the first inclined slide rail 83 and the limiting rod 84 are combined to form a downwardly inclined receiving cavity 80, a front end of the receiving cavity 80 is engaged with the downstream of the feeding belt 4 or the auxiliary flat slide rail 7 so as to be capable of receiving the sectional materials output from the feeding belt 4, and the limiting rod 84 is detachably connected to the limiting frame 8 so as to be capable of adjusting an inner cavity height of the receiving cavity 80. The receiving cavity 80 is a space between the first inclined slide rail 83 and the limiting rod 84, the feeding belt 4 conveys the section bars to the receiving cavity 80, the section bars slide to the bottom of the receiving cavity 80 along the first inclined slide rail 83 under the action of the dead weight of the section bars, and the section bars can be well arranged in the receiving cavity 80 one by adjusting the height in the cavity of the receiving cavity 80 to be slightly larger than the diameter of a single section bar. Further, in order to enable the profile entering the receiving cavity 80 to keep a flat posture, an auxiliary inclined slide rail 85 is further arranged between the two first inclined slide rails 83, and an upper end supporting surface of the auxiliary inclined slide rail 85 is substantially flush with an upper end supporting surface of the first inclined slide rail 83.

In order to facilitate the conveying of the long strip profiles stored in the storage device 1 to the feeding belt 4, as shown in fig. 1 and 7, the storage device 1 includes a rack 11, a pulley shaft 15 disposed on the rack 11, a motor 13, a take-up pulley 12, and a lifting belt 14, all the take-up pulleys 12 are in transmission connection with the pulley shaft 15, one end of the lifting belt 14 is connected to the rack 11, and the other end is connected to the take-up pulley 12, the motor 13 drives the take-up pulley 12 to rotate forward or backward through the pulley shaft 15 to tighten or loosen the lifting belt 14, and when the lifting belt 14 is tightened, the lifting belt 14 can lift the long strip profiles stored on the rack 11 and convey the long strip profiles to the feeding belt 4. Further, in order to control the lifting and lowering height of the lift belt 14 more accurately, a rotational positioning device coupled to the pulley shaft 15 is further included. The rotary positioning device comprises an adjusting seat 16, a screw rod 17 connected with the belt wheel shaft 15 and a nut 18 sleeved on the screw rod 17, wherein a sliding groove 161 is arranged on the adjusting seat 16, a positioning arm 181 penetrating through the sliding groove 161 is arranged on the nut 18, a first positioning switch 19a in signal connection with the controller is arranged at one end of the sliding groove 161, and a second positioning switch 19b in signal connection with the controller is arranged at the other end of the sliding groove 161. The screw 17 is driven by the pulley shaft 15 to rotate in a forward direction and drive the nut 18 to move along the chute 161 to the first positioning switch 19a, the first positioning switch 19a is triggered by the positioning arm 181 and sends a pause signal to the controller, and the controller pauses the motor 13 after receiving the pause signal so as to pause the rotation of the take-up pulley 12 and move the long section on the lift belt 14 to the feeding belt 4; the controller then controls the motor 13 to rotate reversely to drive the take-up pulley 12 to rotate reversely to lower the lift belt 14 and the long bar-shaped material, and at the same time, the screw 17 is driven by the pulley shaft 15 to rotate reversely to drive the nut 18 to move along the sliding slot 161 to the second positioning switch 19b, when the second positioning switch 19b is triggered by the positioning arm 181, a stop signal is sent to the controller, and the controller stops the motor 13 after receiving the stop signal to lower the lift belt 14 to a specified height.

Claims

1. An improved feeding device for transversely conveying long-strip profiles comprises a machine frame, wherein at least two feeding belts horizontally extending in the front-back direction are arranged on the machine frame at intervals, and the feeding belts can rotate so as to transversely advance the long-strip profiles on a supporting surface at the top end of the feeding belts; the device is characterized in that at least one auxiliary flat slide rail is further arranged on the rack, the auxiliary flat slide rail extends horizontally and is arranged on the side edge of the feeding belt, and the top end supporting surface of the auxiliary flat slide rail and the top end supporting surface of the feeding belt are basically level for supporting the sectional material together.

2. The loading device according to claim 1, further comprising a controller, and a driver and a sensor in signal communication with the controller, wherein the driver is configured to drive the feed belt to rotate forward and backward under the control of the controller, the sensor is disposed above the feed belt, the sensor is configured to detect the profile passing thereunder in a stacked state and provide a detection signal corresponding thereto to the controller, and the controller is configured to drive the feed belt to rotate backward by a threshold step immediately after the feed belt advances with the profile in a transverse direction and receives the detection signal.

3. The loading device according to claim 2, wherein the feeding belts are chain belts and driven to move by a pair of driving sprockets and driven sprockets, and further comprising a main driving shaft rotatably disposed on the frame, the driving sprockets of all feeding belts are drivingly connected to the main driving shaft, and the driver is drivingly connected to the main driving shaft and drives all feeding belts to rotate synchronously by the main driving shaft; the feeding belt comprises a metal meshing part meshed with the chain wheel and a nonmetal supporting part connected to the side edge or the upper edge of the metal meshing part, the upper surface of the nonmetal supporting part forms a top supporting surface for supporting the section bar, and the upper surface of the nonmetal supporting part is higher than the upper surface of the metal meshing part.

4. The feeding device according to claim 1, further comprising a limiting frame arranged above the feeding belt and capable of adjusting the height relative to the feeding belt, wherein the sensor is arranged on the limiting frame so as to adjust the position height of the sensor relative to the feeding belt.

5. The feeding device according to claim 4, further comprising a first inclined slide rail disposed on the rack and a limiting rod disposed above the first inclined slide rail, wherein the first inclined slide rail and the limiting rod are combined to form a downwardly inclined receiving cavity, a front end of the receiving cavity is engaged with a downstream of the feeding belt or the auxiliary flat slide rail so as to be capable of receiving the profile output from the feeding belt, and the limiting rod is detachably connected to the limiting frame so as to adjust an inner cavity height of the receiving cavity.

6. A loading device as claimed in any one of claims 1 to 5, wherein said sensor is a travel switch comprising a touch arm and a switch, said touch arm being adapted to touch and detect the profile passing thereunder in a stacked state and to transmit a collision signal to said switch, said switch signal being connected to said controller.

7. A loading device as claimed in any one of claims 1 to 5, wherein said auxiliary flat rail comprises a metal support and a non-metal surface layer laid on said metal support, and the top end surface of said non-metal surface layer forms the top end supporting surface of said auxiliary flat rail.